<!-- 互动动态 -->
<div class="sidebar-card">
    <div class="card-header">
        <h3 class="card-title">互动动态</h3>
        <a href="#" class="see-all">全部动态</a>
    </div>

    <div class="activity-feed">
        <div class="activity-item">
            <img src="https://picsum.photos/id/65/36/36" alt="李婷婷的头像" class="activity-avatar">
            <div class="activity-content">
                <p class="activity-text"><a href="#">李婷婷</a> 点赞了你的帖子</p>
                <p class="activity-time">10分钟前</p>
            </div>
        </div>

        <div class="activity-item">
            <img src="https://picsum.photos/id/91/36/36" alt="王建国的头像" class="activity-avatar">
            <div class="activity-content">
                <p class="activity-text"><a href="#">王建国</a> 评论了你的分享</p>
                <p class="activity-time">35分钟前</p>
            </div>
        </div>

        <div class="activity-item">
            <img src="https://picsum.photos/id/26/36/36" alt="陈思思的头像" class="activity-avatar">
            <div class="activity-content">
                <p class="activity-text"><a href="#">陈思思</a> 分享了你的文章到她的主页</p>
                <p class="activity-time">2小时前</p>
            </div>
        </div>

        <div class="activity-item">
            <img src="https://picsum.photos/id/64/36/36" alt="张晓明的头像" class="activity-avatar">
            <div class="activity-content">
                <p class="activity-text"><a href="#">张晓明</a> 关注了你</p>
                <p class="activity-time">昨天</p>
            </div>
        </div>
    </div>
</div>
